United Airlines is proud to offer the all-new Apple watch compatible United app, with a flyer-friendly design. The United app is optimized for the iPhone and compatible with the iPad. Offering features from flight booking to flight status and more, the United app is your indispensable travel companion. Highlights:
Best Answer: Absorbance: A logarithmic measure of the amount of light absorbed (at particular wavelength) as the light passes through a sample or substance ...
absorption unit - a unit for measuring absorption. 1  unit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; the dollar is the United States unit of currency; a unit of wheat is a bushel; change per unit volume. sabin - a unit of acoustic absorption equivalent to the absorption by a square foot of a surface that absorbs all incident sound.